Jami' al-Saghir / Jam' al-Jawami' (al-Suyuti) 4-452b
"عَنْ عَلِىٍّ قَال: كَان النَّبِىُّ ﷺ يَجْهَرُ في الْمكْتُوبَاتِ بِبِسْمِ الله الرَّحمنِ الرَّحيم".
Notes
[قط] الدارقطنى في السنن
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